masking agent

The sample is dissolved with mixed acid including sulphuric acid so that the lead matrix is separated as precipitate, and the germanium in clear solution is directly determined in presence of EDTA ascorbic acid as masking agent. The lower limit of determination is 0.002 μ g mL.

在试样溶解过程中分离主体铅并采用EDTA-抗坏血酸掩蔽干扰离子。拟定了不经分离直接测定方铅矿中微量锗的方法，0.02&0.4μg/mL锗范围内线性关系良好。

This article makes an inquiry into the testing method on the total fluorine in the toothpaste containing NaF with using fluoride selective electrode and using EDTA/ THAM solution as ion masking agent and pH conditioning agent of ion.

探讨了以EDTA/THAM溶液作为金属离子掩蔽剂和OH-离子的pH调节剂，用氟离子选择电极测定NaF药物牙膏中总氟含量的测定方法。进行了不同条件、不同仪器、不同方法的对比试验；

Thiacetamide ( TAA) was used as masking agent for chlorite.

加入硫代乙酰胺（TAA）作掩蔽剂测定ClO2~-。

Study on Phytic Acid as a Masking Agent in Complexometric Titration of Copper

植酸在络合滴定铜时作为掩蔽剂的研究

This is to study the effect of TISAB as masking agent of metal ions and pH conditioning agent of ion to the determination of total fluorine in toothpaste by ion selective electrode method.

〔目的〕探讨TISAB溶液作为金属离子掩蔽剂和OH-离子的pH调节剂对氟离子选择电极测定牙膏氟含量的影响。

White noise is a good masking agent.

白噪声是一种很好的掩蔽声.